Page 81 - 2018 National Home Improvement

2018 National Home Improvement Estimator, All Rights Reserved Page 64

Sill plate. Mud sill at foundation, #2 pressure treated lumber, drilled and installed with foundation bolts
at 48" OC, no bolts, nuts or washers included. Figures in parentheses show board feet per LF of
foundation, including 5% waste.
Sill plates, per MBF B1@22.9 MBF 729.22 834.70 1,563.92
2" x 3" (.53 BF per LF) B1@.020 LF 0.44 0.73 1.17
2" x 4" (.70 BF per LF) B1@.023 LF 0.53 0.84 1.36
2" x 6" (1.05 BF per LF) B1@.024 LF 0.82 0.88 1.69
2" x 8" (1.40 BF per LF) B1@.031 LF 1.01 1.13 2.14
Add for installation in a basement B1@.095 LF -- 3.46 3.46
Add for installation in a crawl space B1@.158 LF -- 5.76 5.76

Framing Room Additions

Floor joists -- room addition. Per SF of area covered. Figures in parentheses indicate board feet per
square foot of floor including box or band joist, typical double joists (under partition walls), and 6%
waste. No beams, blocking or bridging included. Deduct for openings over 25 SF. Costs shown are
based on a job with 1,000 SF of area covered. For scheduling purposes, estimate that a crew of two can
complete 750 SF of area per 8-hour day for 12" center-to-center framing; 925 SF for 16" OC; 1,100 SF
for 20" OC; or 1,250 SF for 24" OC. See the following section for costs of repairing floor joists in an
existing building. For more complete coverage, see National Framing and Finish Carpentry Estimator at
http://CraftsmanSiteLicense.com.
2" x 6" Std & Btr
2" x 6" floor joists, per MBF --@.000 MBF 674.68 -- 674.68
12" centers (1.28 BF per SF) B1@.021 SF 0.87 0.77 1.63
16" centers (1.02 BF per SF) B1@.017 SF 0.69 0.62 1.31
20" centers (.88 BF per SF) B1@.014 SF 0.60 0.51 1.11
24" centers (.73 BF per SF) B1@.012 SF 0.49 0.44 0.93
2" x 8" Std & Btr
2" x 8" floor joists, per MBF --@.000 MBF 654.48 -- 654.48
12" centers (1.71 BF per SF) B1@.023 SF 1.12 0.84 1.96
16" centers (1.36 BF per SF) B1@.018 SF 0.89 0.66 1.54
20" centers (1.17 BF per SF) B1@.015 SF 0.77 0.55 1.31
24" centers (1.03 BF per SF) B1@.013 SF 0.68 0.47 1.15
2" x 10" Std & Btr
2" x 10" floor joists, per MBF --@.000 MBF 678.72 -- 678.72
12" centers (2.14 BF per SF) B1@.025 SF 1.45 0.91 2.37
16" centers (1.71 BF per SF) B1@.020 SF 1.16 0.73 1.89
20" centers (1.48 BF per SF) B1@.016 SF 1.00 0.58 1.58
24" centers (1.30 BF per SF) B1@.014 SF 0.88 0.51 1.39
2" x 12" Std & Btr
2" x 12" floor joists, per MBF --@.000 MBF 749.42 -- 749.42
12" centers (2.56 BF per SF) B1@.026 SF 1.92 0.95 2.87
16" centers (2.05 BF per SF) B1@.021 SF 1.54 0.77 2.30
20" centers (1.77 BF per SF) B1@.017 SF 1.32 0.62 1.94
24" centers (1.56 BF per SF) B1@.015 SF 1.17 0.55 1.72

Add floor joists under an existing building. Per linear foot of new joist set in joist hangers or
“doubled” by spiking to an existing joist. Jacking floor joistsJack two or three adjacent joists into
position with a crossarm mounted on a hydraulic jack. Per jacking point. Work done on sloping or
unstable ground will cost more. Includes the cost of removing the jack.
Jacking done in a basement B1@.700 Ea -- 25.52 25.52
Jacking done in a crawl space B1@1.25 Ea -- 45.56 45.56
Set 2" x 6" floor joist
Work done in a basement B1@.042 LF 0.87 1.53 2.40
Work done in a crawl space B1@.070 LF 0.87 2.55 3.42